高度X线照射的尾蚴疫苗具有使童虫不能移行到免疫宿主的肺、肝而产生损害,并可诱导对攻击感染的抵抗力的作用。本文探讨了该种疫苗接种的最适宜条件及其效果。疫苗的照射剂量应以减弱尾蚴穿越皮肤,不能进入循环导致肺、肝损害,滞留于皮肤内的时间较长,致使其成为良好免疫原为标准。同时也要考虑到接种的次数和时间间 The highly x-ray irradiated cercariae vaccine has the effect of preventing the squirrels from migrating to the lungs and liver of the immune host, and inducing the resistance to attacking the infection. This article explores the most appropriate conditions for vaccination and its effects. Vaccine exposure dose should be weakened cercariae across the skin, can not enter the circulation lead to lung and liver damage, stay in the skin for a long time, making it a good immunogen as a standard. Also take into account the frequency of vaccination and time